- According to one of the first technical reports, " The visible phenomena due to the burst were widespread and quite intense; a very large area of the Pacific was illuminated by the auroral phenomena, from far south of the south magnetic conjugate area ( Tongatapu ) through the burst area to far north of the north conjugate area ( French Frigate Shoals ) . . . . At twilight after the burst, resonant scattering of light from lithium and other debris was observed at Johnston and French Frigate Shoals for many days confirming the longtime presence of debris in the atmosphere.